Not sure just what you mean. When I disconnect the vacuum line from the rear of up shift valve I do hear the vacuum release.?? So hard to tell just what the timing is on the 2-3 shif of the automobile, Temp in the garage is 55 Deg. when I or I should say when my wife leaves to go to work. Should I just leave the car outside and then try to drive it a few hours later and see how long it takes to shift from 2nd to 3rd?? Really need help on this one I am completely stumped.